Re: emacs-26 8f18d12: Improve documentation of decoding into a unibyte buffer

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Date: Mon, 27 May 2019 15:17:12 -0400
> 
> > For a multibyte string that was encoded already, encoding by
> > utf-8-emacs-unix is IMO the _only_ thing that makes sense.
> 
> I disagree: a multibyte string that was encoded already should only
> contain ASCII and "eight-bit raw byte chars"

But both ASCII and raw bytes have multibyte representation.  If the
destination of the encoding is a multibyte buffer, that is what you
get there, and then taking buffer-substring will give you a multibyte
string with encoded text.  I don't see why we shouldn't support this
scenario.